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Mostly a Rust hacker

Interests: Reversible programming, HTTP Live Streaming and derivatives, FreeBSD
This blog post is bit of a culmination about me thinking about `n..` ranges in Rust for way too long time.

It is about why I think the current semantics for the iterator are wrong.

https://erk.dev/2026/08/30/rangefrom-part-2
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RustNL's Rust Maintainer Team has grown and now consists of 14 people, including three interns! ✨️

https://rustnl.org/maintainers/

Together, these people are either the author or a reviewer of more than 30% of all pull requests on the rust-lang/rust repository:

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My train is on the plan again after a long summer.

This cuts down my transport time down to less than half of what it has been the last few months. 🚂
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I have been thinking a lot about the RangeFrom type (n..) in Rust so I thought I would write up a bunch of history about to have somewhere to start a further discussion about it: https://erk.dev/2026/08/12/rangefrom-part-1
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I was asked recently about the cost of running a (#rustlang) conference and why the ticket prices are what they are. We figured we can just publicly share the numbers for RustWeek, in the name of . :)

RustWeek has many subevents (conference, hackathon, unconference, workshops, Rust All Hands, etc.), but I've tried to extract just the two day conference part of RustWeek 2026:

Venue rent: € ~50k
Lunch, snacks, drinks two full days: € ~130k (incl. catering services and exclusive access to 1000 person restaurant all day)
A/V services: € ~30k (incl. livestreaming, professionals operating the cameras/microphones/screens in the rooms, editing the recordings, etc.)
Stuff we set up at the venue: € ~20k (sponsor booths, entertainment, banners, stickers, wifi, etc.)
Travel compenstation for speakers: € ~10k
External services: € ~25k (accounting, registration & payment, event management, insurance, etc.)
Miscelaneous: € ~15k

This adds up to roughly € 280k for just the two conference days. (The total for all of RustWeek is ~€ 400k.)

The money we get from sponsors covers roughly half of the costs. The other half has to be covered by tickets.

We are currently the biggest Rust conference with 850+ attendees. We give free tickets to all the speakers and volunteers, which is almost a hundred people total. The sponsor packages also include a total of roughly 100 tickets. That leaves ~650 sold tickets.

Those are roughly 250 corporate tickets (~410 euro after tax), 300 individual tickets (~190 euro after tax), and 100 student tickets (~30 euro after tax). Accounting for the various discounts (early bird, discount codes, etc.) and overhead, this leaves us with roughly 140k.

Those student tickets are sold at a significant loss, but it's very important to us to not just run this conference for those with a well paid job.

Setting the ticket prices is very tricky, because you have to set them a year in advance, before you know what amount of sponsorship to expect. We only find out *after* the event if we guessed correctly or if we ran at a loss. This year, we made a (very small) profit, which we'll spend on our Rust Maintainers Team: https://rustnl.org/maintainers/

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SMK – Statens Museum for Kunst

Gudskelov for Wikipedia!
Vi er glade for åbenhed, og i de sidste 15 år har SMK haft stor glæde af Wikipedia. Samlingen er fornemt repræsenteret, og har igennem årene bevæget sig ud på over 9.000 forskellige opslag på det store, fælles onlineleksikon.
Hvilke værker bruges mest? Tak for spørgsmålet, for vi har netop kigget dybt i statistikken. Og det drejer sig om:

🖼️ Cornelis Cornelisz. van Haarlem, Titanernes fald, 1588 – 1590.
🖼️Nicolai Abildgaard, Hamlet hos sin moder, 1776 – 1779
🖼️C.A. Lorentzen, Dannebrog falder ned fra himlen under Volmerslaget ved Lyndanisse (Tallin) i Estland den 15. juni 1219, 1809
🖼️ Henri Matisse, Selvportræt, 1906

Samlet vises SMK-kunst omkring 2.2 millioner gange om måneden på Wikipedia 👌

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Imagine organizing a Rust conference and having zero women on stage. That's just embarrasing. https://oxidizeconf.com/

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This months meetup is up. Looking forward to seeing everyone :)

https://www.meetup.com/copenhagen-rust-community/events/315767999

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Now I can finally commit Rust code crimes legally. 😌

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A post by @Mara have been stuck in my head for about two months now so I just had to write out my thoughts on what the most central railway station in the Netherlands is: https://erk.dev/2026/06/21/the-most-central-station-in-nl
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First stop on the journey today: Hamburg Hbf.
Picture of the platforms on Ham…
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Any of the small people inside ActivityPub going to be around RustWeek next week? I am in the Netherlands for all of next week so say hi if you spot me. I am bringing a new species of Ferris as stickers there (properly cursed this time)
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After having a subpar setup for a long time, just running my website in a Zellij session I finally set up a service, and at the same time I set up continuous deployment.

I wrote about it here: https://erk.dev/2026/04/20/freebsd-cd
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Servo 0.1.0 is out! 🚀
This is our first release available in crates.io and our first LTS version
https://servo.org/blog/2026/04/13/servo-0.1.0-release/

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Welp, I got laid off. RIP futurewei OSS rust team.

If you know anyone hiring systems engineers lmk.

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Cursed connector that we use at work, any guesses what it is for?
A cable coiled up with the conn…
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Rust 1.94.0 has been released! 🌈 🦀 ✨

A few highlights are array_windows() and element_offset() on slices, Peekable::next_if_map(), LazyCell::get and friends, and the new `include` key in config.toml to include other toml files!

Check out the blog post for details: https://blog.rust-lang.org/2026/03/05/Rust-1.94.0/

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Going to a chemistry cabaret at my old uni tonight. It is the newest of the science cabarets so it is fun to see how the running gags evolve.

My favourite gag from the past few years have been about how all chemicals should just go into the handwash.
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